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From: Andrew Lunn <andrew@lunn.ch>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: Wong Vee Khee <vee.khee.wong@linux.intel.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Voon Weifeng <weifeng.voon@intel.com>,
Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>,
Vladimir Oltean <olteanv@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-stm32@st-md-mailman.stormreply.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 1/2] net: pcs: xpcs: enable skip xPCS soft reset
Date: Wed, 11 Aug 2021 16:20:56 +0200 [thread overview]
Message-ID: <YRPcyHTc2FJeEoqk@lunn.ch> (raw)
In-Reply-To: <f2a1f135-b77a-403d-5d2e-c497efc99df7@gmail.com>
> > BIOS does configured the SerDes. The problem here is that all the
> > configurations done by BIOS are being reset at xpcs_create().
> >
> > We would want user of the pcs-xpcs module (stmmac, sja1105) to have
> > control whether or not we need to perform to the soft reset in the
> > xpcs_create() call.
>
> I understood Andrew's response as suggesting to introduce the ability for
> xpcs_create() to make a BIOS call which would configure the SerDes after
> xpcs_soft_reset().
Yes. Exactly. That is what ACPI is for, so we should use it for this.
Andrew
next prev parent reply other threads:[~2021-08-11 14:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-09 10:22 [PATCH net-next 0/2] Intel AlderLake-S 2.5Gbps link speed support Wong Vee Khee
2021-08-09 10:22 ` [PATCH net-next 1/2] net: pcs: xpcs: enable skip xPCS soft reset Wong Vee Khee
2021-08-09 11:06 ` Vladimir Oltean
2021-08-10 23:50 ` Wong Vee Khee
2021-08-09 13:35 ` Andrew Lunn
2021-08-10 23:55 ` Wong Vee Khee
2021-08-11 8:36 ` Florian Fainelli
2021-08-11 14:20 ` Andrew Lunn [this message]
2021-08-26 11:50 ` Wong Vee Khee
2021-08-09 10:22 ` [PATCH net-next 2/2] stmmac: intel: Enable 2.5Gbps on Intel AlderLake-S Wong Vee Khee
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